feat: Initial clean release of CHM

packages/app-desktop/gui/dialogs.ts

@@ -0,0 +1,62 @@
+import Logger from '@joplin/utils/Logger';
+
+const logger = Logger.create('dialogs');
+
+interface Smalltalk {
+	alert(title: string, message: string): Promise<boolean>;
+	confirm(title: string, message: string, options: unknown): Promise<void>;
+	prompt(title: string, message: string, defaultValue: string, options: unknown): Promise<string>;
+}
+
+class Dialogs {
+	private activeWindow: Window|null;
+	public setActiveWindow(win: Window) {
+		this.activeWindow = win;
+	}
+
+	private get smalltalk(): Smalltalk {
+		// The smalltalk library shows prompts in whichever document it is loaded in
+		// (it uses the global document object).
+		// As such, a copy of the library needs to be loaded in each window:
+		if (this.activeWindow && 'smalltalk' in this.activeWindow) {
+			return this.activeWindow.smalltalk as Smalltalk;
+		}
+
+		if ('smalltalk' in window) {
+			return window.smalltalk as Smalltalk;
+		}
+
+		throw new Error('Unable to find the smalltalk library. Please make sure it has been loaded with a <script> element.');
+	}
+
+	public async alert(message: string, title = '') {
+		await this.smalltalk.alert(title, message);
+	}
+
+	public async confirm(message: string, title = '', options: unknown = {}) {
+		try {
+			await this.smalltalk.confirm(title, message, options);
+			return true;
+		} catch (error) {
+			logger.error(error);
+			return false;
+		}
+	}
+
+	public async prompt(message: string, title = '', defaultValue = '', options: Record<string, unknown> = null) {
+		options = { cancel: true, ...options };
+
+		try {
+			// https://github.com/laurent22/joplin/pull/10258#discussion_r1550306545
+			const answer = await this.smalltalk.prompt(title, message, defaultValue, options);
+			return answer;
+		} catch (error) {
+			logger.warn('Prompt appears to have been cancelled:', error);
+			return null;
+		}
+	}
+}
+
+const dialogs = new Dialogs();
+
+export default dialogs;